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CVE-2023-53501 iommu/amd/iommu_v2: Fix pasid_state refcount dec hit 0 warning on pasid unbind

🗓️ 01 Oct 2025 11:45:52Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 4 Views

Fix pasid_state refcount to avoid zero hit warning on pasid unbind in AMD IOMMU

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/iommu/amd/iommu_v2.c"
    ],
    "versions": [
      {
        "version": "8bc54824da4e8fcf0ed679cf09ac32f23d83254a",
        "lessThan": "a50d60b8f2aff46dd7c7edb4a5835cdc4d432c22",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8bc54824da4e8fcf0ed679cf09ac32f23d83254a",
        "lessThan": "13ed255248dfbbb7f23f9170c7a537fb9ca22c73",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8bc54824da4e8fcf0ed679cf09ac32f23d83254a",
        "lessThan": "9ccc51be3126b25cfe9351dbffde946c925cc28a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8bc54824da4e8fcf0ed679cf09ac32f23d83254a",
        "lessThan": "98d86bf32187db27946ca817c2467a5f2f7aa02f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8bc54824da4e8fcf0ed679cf09ac32f23d83254a",
        "lessThan": "534103bcd52ca9c1fecbc70e717b4a538dc4ded8",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/iommu/amd/iommu_v2.c"
    ],
    "versions": [
      {
        "version": "5.15",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.15",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.132",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.53",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.4.16",
        "lessThanOrEqual": "6.4.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.5.3",
        "lessThanOrEqual": "6.5.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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